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4915163 Plate type heat exchanger
viii
New Patents
tion refrigeration cycle is provided by the exhaust gas from one or more drives for the compressors in the process.
4915061 FLUIDIZED BED REACTOR UTILIZING CHANNEL SEPARATORS Juan A Garcia-Mallol assigned to Foster Wheeler Energy Corporation A reactor in which a furnace section and a heat recovery section are formed in a vessel. A bed of solid particulate material including fuel is supported in furnace section and air is introduced into the bed at a velocity s ~ n t to fluidize same and support the combustion or gasification of the fuel. A mixture of air, the gaseous products of combustion, and the particulate material entrained by the air and the gaseous products of combustion are saturated with the particulate material and directed to the heat recovery section, and a plurality of channel beams are disposed in the heat recovery section for separating the particulate material from the mixture. A trough extends between the furnace section and the heat recovery section for receiving the separated particulate material from the channel beams, and the trough is connected to the furnace section for returning the separated particulate material back to the bed.
4915163 PLATE TYPE HEAT EXCHANGER Ken Matsunaga, Yoshiyuki Yamauchi, Masatoshi Sudo, Masami Ohshita, Kiyomitsu Tsuchiya, Kariya, Japan assigned to Nippondenso Co Ltd A plate type heat exchanger has a plurality of tube units and a plurality of corrugated fins. Each of the tube units is formed by a pair of plates, namely a pair of plates are connected to each other by a brazing material at a connecting portion at an outer periphery of the plate and a center rib at a center axis of the plate. The center rib has an enlarged portion at the top end thereof in order to gather the molten brazing material toward the enlarged portion. The brazing at the center rib is started from the enlarged portion. Therefore a brazing defect is prevented from occurring at the top end of the center rib. Since the
tube unit is effectively connected by brazing, the tube unit of the present invention has enough anti-pressure strength.
4915166 ~TANIUMHEATEXCHANGE TUBES James L Cunningham, Bonnie J Campbell assigned to Wolverine Tube Inc Improved method and apparatus for making finned tubing from difficult to work materials such as titanium and stainless steel uses spaced sets of finning discs on a plurality of arbors to form a tube against a mandrel having different diameters under each set of discs. By forming the tube fin tips to their final O.D. in a first disc set and by deepening their roots to bring the fins to their final height in a second disc set, tubes with higher fin counts and/or higher fin heights can be achieved than were formerly possible. The proceu of separately cold working the tips and roots also permits tubes to be made which are dimensionally identical to prior art tubes but with higher quality and productivity since tube stresses are greatly reduced. An improved titanium tube is also dimmed which has at leasts 26 fins per inch, a fin height of at least 0.034" and an outside to inside surface area ratrio of at least 3.0.
~1~15 METHOD AND APPARATUS=FOR MEASURING THE D~UTION OF HEAT FLUX AND HEAT TRANSFER COEFFICIENTS ON THE SURFACE OF A COOLED C O ~ ~ U~ IN A H I G H TEMPERATURE ~ONf~tI~NT Eugene F Adiutori assigned to General Electric Company Heat flux distribution and heat transfer coefficient distribution over a surface of a component used in a high temperature environment are determined by supplying coolant of predetermined characteristics to the component and measuring a temperature distribution over a predetermined surface. The heat flux at each temperature measurement point on the surface of
New Patents
tion refrigeration cycle is provided by the exhaust gas from one or more drives for the compressors in the process.
4915061 FLUIDIZED BED REACTOR UTILIZING CHANNEL SEPARATORS Juan A Garcia-Mallol assigned to Foster Wheeler Energy Corporation A reactor in which a furnace section and a heat recovery section are formed in a vessel. A bed of solid particulate material including fuel is supported in furnace section and air is introduced into the bed at a velocity s ~ n t to fluidize same and support the combustion or gasification of the fuel. A mixture of air, the gaseous products of combustion, and the particulate material entrained by the air and the gaseous products of combustion are saturated with the particulate material and directed to the heat recovery section, and a plurality of channel beams are disposed in the heat recovery section for separating the particulate material from the mixture. A trough extends between the furnace section and the heat recovery section for receiving the separated particulate material from the channel beams, and the trough is connected to the furnace section for returning the separated particulate material back to the bed.
4915163 PLATE TYPE HEAT EXCHANGER Ken Matsunaga, Yoshiyuki Yamauchi, Masatoshi Sudo, Masami Ohshita, Kiyomitsu Tsuchiya, Kariya, Japan assigned to Nippondenso Co Ltd A plate type heat exchanger has a plurality of tube units and a plurality of corrugated fins. Each of the tube units is formed by a pair of plates, namely a pair of plates are connected to each other by a brazing material at a connecting portion at an outer periphery of the plate and a center rib at a center axis of the plate. The center rib has an enlarged portion at the top end thereof in order to gather the molten brazing material toward the enlarged portion. The brazing at the center rib is started from the enlarged portion. Therefore a brazing defect is prevented from occurring at the top end of the center rib. Since the
tube unit is effectively connected by brazing, the tube unit of the present invention has enough anti-pressure strength.
4915166 ~TANIUMHEATEXCHANGE TUBES James L Cunningham, Bonnie J Campbell assigned to Wolverine Tube Inc Improved method and apparatus for making finned tubing from difficult to work materials such as titanium and stainless steel uses spaced sets of finning discs on a plurality of arbors to form a tube against a mandrel having different diameters under each set of discs. By forming the tube fin tips to their final O.D. in a first disc set and by deepening their roots to bring the fins to their final height in a second disc set, tubes with higher fin counts and/or higher fin heights can be achieved than were formerly possible. The proceu of separately cold working the tips and roots also permits tubes to be made which are dimensionally identical to prior art tubes but with higher quality and productivity since tube stresses are greatly reduced. An improved titanium tube is also dimmed which has at leasts 26 fins per inch, a fin height of at least 0.034" and an outside to inside surface area ratrio of at least 3.0.
~1~15 METHOD AND APPARATUS=FOR MEASURING THE D~UTION OF HEAT FLUX AND HEAT TRANSFER COEFFICIENTS ON THE SURFACE OF A COOLED C O ~ ~ U~ IN A H I G H TEMPERATURE ~ONf~tI~NT Eugene F Adiutori assigned to General Electric Company Heat flux distribution and heat transfer coefficient distribution over a surface of a component used in a high temperature environment are determined by supplying coolant of predetermined characteristics to the component and measuring a temperature distribution over a predetermined surface. The heat flux at each temperature measurement point on the surface of